I've got a 125 gal. with L/S & L/R, 7 Anemone, Maroon clown, Foxface, Orangegolby, Yellow&Purple tang,a few damsiels and a Morish idol. A little bit of corals- Flowerpot,Pulsing Xenia,Hammerhead,Zoanthids on polyp rock. Some crabs and snails. A chiller two 6' smart lights and a skimmer that about covers it. I got SUPER LUCKY on a 300 gal. tank that has it all and I mean ALL. I want to put new one in the same spot as old one.I would like to -out with the old and in with the new one same day, Any help and hints would be great.I thank you in advance.